HENAN SHUNYING

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Why Large-Diameter Double Sphere Rubber Joints Require Pressure Reinforcing Rings

2025.05.16

In industrial piping systems, Double Sphere Rubber Joints are critical components due to their flexibility and displacement compensation capabilities. For large-diameter applications (DN300 and above), integrating Pressure Reinforcing Rings is essential to enhance performance and safety. Here are three key reasons:

double sphere rubber joint
  1. Boost Pressure Resistance, Ensure Stability
    Large-diameter Double Sphere Rubber Joints face significant stress in high-pressure environments. The Pressure Reinforcing Ring strengthens the outer structure, evenly distributes pressure loads, and prevents rubber layer tears, ensuring leak-proof performance under high-pressure or high-flow conditions.
  2. Control Radial Expansion, Extend Service Life
    Under operational pressure, large-diameter rubber joints may experience radial expansion, leading to flange bolt loosening or leaks. The Pressure Reinforcing Ring limits radial deformation, reduces rubber fatigue, and improves the aging resistance of Double Sphere Rubber Joints by over 30%.
  3. Adapt to Complex Conditions, Reduce Maintenance Costs
    In thermal pipelines or systems with frequent start-stop cycles, the Pressure Reinforcing Ring works with the double-sphere design to compensate for multi-directional displacement, preventing joint sagging caused by pressure fluctuations. This design minimizes stress concentration risks and lowers downtime for repairs.

As a professional Double Sphere Rubber Joint manufacturer, we equip all large-diameter products with Pressure Reinforcing Rings as standard. Rigorous pressure testing and fluid simulations ensure high-reliability, long-lasting pipeline solutions. Contact our technical team for custom large-diameter, high-pressure rubber joint configurations!